I've been playing around with 7-6-6 memory timings with 1T enabled and the results are impressive.... The memory voltage was left at 2.25V during testing...
Here is 'stock' 1800MHz with 7-6-6-17 1T timings:
Here is 1900MHz with 7-6-6-20 1T timings:
I can't fully break 10,000MB/Sec on Sandra, but this is close... 1916MHz at 7-6-6-18 1T